Leveling instrument.



0. FARE. LEVELING INSTRUMENT. APPLIGATION FILED JAN.17,1913.

1,067,753. Patented July 15,1913. Z SHEETS 'SHEET 1.

XX I v wi/tmeoow Mama I y O. FARE. LEVELING INSTRUMENT. APPLIGATION FILED JAN. 17, IQKS.

1,067,753, kiatented July 15, 1913. I Z SHBETS SHEET 2 f'lwue/wtom Omar Pare To all whom it may concern:

ing device.

UNITED STATES PATENT OFFICE.

OMER FARE, OF SALEM, MASSACHUSETTS, ASSIGNOR OF ONE-TENTH TO ANTOINE R. FOI SY, OF SALEM, MASSACHUSETTS.

LEVELING INSTRUMENT.

Specification of Letters Patent.

Patented July 15, 1913.

Application filed January 17, 19 13. Serial No. 742,654.

Be it known that I, OMER PARIE, a citizen of the United States of America, residing at Salem, in the county of Essex and State of Massachusetts, have invented new and useful Improvements in Leveling Inst-ruments, of which the following'is a specification.

This invention relates to improvements in leveling instruments and has particular application to a combined leveling and plumb- In carrying out the present invention, it

is my purpose to provide a combined levelin and plumbing instrument wherein the bu hles in the spirit tubes may be illumi-- nated so as to facilitate the use of the device in dark corners and other places lacking a sufiicient amount of light.

Furthermore, I aim to provide a leveling instrument wherein. a level'tube will be arranged within the stock and capable of'having light. rays projected thereon to render the bubble visible in dark places, while a second level is carried by the stock and visible at one of the edges thereof so that the instrument may be used with ease and facility in the open, the level tubes in either case being clearly visible.

7 It is also my purpose to provide an instrument of the type set forth which will embrace among other features a stock having a sight opening therein opening upon the sides thereof so that the plumbing and leveling tubes may be viewed, the stock being further provided with a pocket or chamber opening upon one edge thereof and housing a suitable\ form of lamp whereby the lightrays may be projected into the sight opening and upon the spirit tubes, :1 cover being provided for the pocket or chamber and is detaohably associated with the stock so that the lamp may be removed-when such is desired.

' In the accompanying drawings: Figure l.

plumbing instrument constructed in accordance with the present invention. Fig. 2 is a viewin elevation of the opposite edge. Fig. 3 is a side elevation of the instrument. Fig. 4 is a horizontal longitudinal sectional view. Fig. 5 is a vertical longitudinal sec tional view, and Fig. 6 is a transverse sec-- tional view.

Referring now to the accompanying drawings in detail, the numeral 1 indicates the stock of the instrument which may be con structed of any suitable material and of any desired or convenient length. Formed in the stock l and opening upon the side walls thereof is a sight opening 2 having communication with a bore 3 opening upon one edge of the stock and carrying'a spirit tube 4 forming the plumb tube, any suitable means being employed to hold the spirit tube A in applied position. Also formedin the stock 1 at one side of the bore 3 is; bore 5 opening .into the sight opening at a point at right angles to the bore 3 and receiving a leveling tube 6, suitable means being employed to hold the leveling tube in position. Thus, it will be seen that the plumbing and leveling tubes may be viewed through the sight opening 2. Arranged within the pocket 5 and incasing the sight tube 6 is a. filler block 7 forming a portion of one wall of a recess 8 housing a second leveling tube 9 disposed within a metallic casing lO having its opposite extremities formed to provide. ears 11 through which. are passed screws or the like 12, the latter being embedded in the material of the adjacent wall of the recess. This leveling tube 9 is visible from one edge of the instrument and covering the open end of the recess 8 is a plate 13 lying flush with the respective edge of the stock and suitably fastened thereto 'as by screws 14, the plate being provided with an elongated slot 15 by means of which the bubble within the spirit tube may be seen. From this construction, it will be noted that the instrument may be used for leveling purposes with ease and facility when in the open thereby eliminating the necessity of peeping through the sight opening 2 to view the bubble within the tube 6. The stock 1 has also formed therein a chamber 16 opening upon the edge thereof opposite from the leveling tube 0 and provided with a coyer l composed of a relatively long plate 17 seis an edge view of a combined leveling and the. groove 20 at one ,level determined by the -oi illustrstion, I Wish cured to the respective edge of stock by by means of screws 18 or the like and lying flush with such edge. The plate is formed with a slot 19 opening into the pocket 16, the end Walls of the slot in the plate 17 be.- ing grooved us at 20 1 A second late 21 is adapted to close the slot in tlib plate 17 and has one end thereof formed with lip engegesble in end of the slot 19, while the opposite end of s1 eh second plate carries movable tongue 23 adapted to be projected into the groove at the opp site end of the slot 19 and equipped with u iinger hold :24 extending through an aperture 25 formed in the plate 21 adjacent to this end thereof and forming a Way for the finger hold so that the tongue 23 may be Withdrawn from the respective groove 20 thereby enabling the plate 21 to be removed from the slot-19 so that access may be had to the chamber 16. This chamber lb has crnnmunieation With the sight opening y way of a passage 26 and houses a lamp which, in the present insta: in the form of'a self-contained elecii. lamp 2?, that is a lamp embrncing a casing? containing" a bulb and battery therefor i re usual push button 28 extending outwuia l of one side of the casing so that the circuit may be closed to illuminate the filaments of thelenip. This push button 28 is disposed in the path of movement of uplunger 29 slidable Within an aperture formed in the plate 21 and adapted when operated to actuate the push button '28 and so close the circuit to the bulb so that the light rays from the lamp may be projected through the passage 26 int-0 the sight opening 2 and upon the plumbing and leveling tubes therein.

From the foregoing description talien in connection with the accompanying drnwings, the (o iruction mode. of operation and manner or employing my invention will be readily ppurent. "When the dcvicei. utilized in a dark place such as a corner or the like and it is desired to utilize the instrun'ient as n combined plumb and level% (he plunger 29 is actuated to close the circuit to thelnmp bulb as hereinbefore described whereby the bubbles Within the plumbing; and leveling tubes l and 6 respectively will be plainly visible through the sight opening 2. On the other hand should the device be employed in the open and it is desired to certain the level of a board or the like, the edge of the stock opposite from the leveling tube 9 is placed upon such board and the bubble Within the tube 9.

' lVlule I have herein one preferred form of shown and described my invention by Way it to be understood l i l l I 1 i i I g i l spective that I do not limit mys to the precise de tails of construction LOU-L1 dc bed and delineated, as modification and variation may be made within the scope oi the claims and Without departing from the spirit of the invention.

claim:

1. A device of the described com prising a stock having a sight opening formed therein and opening; upon the sides thereof, a chamber fenned therein and open: iug upon one edge thereof and :1 pocket formed therein and opening upon the oppo' site edge thereoi spirit tubes within the stock at right angles to each other and having portions within the sight opening a electric lamp within said Pl'unnber and adapted to project the eye of light into the sight opening and upon said tubes, and a tube Within said pocliet and visible iron: one edge of the stock.

A device of the class described comprising a stock having a sight opening therein, and a chamber formed within the stock and opening upon one edge thereof, spirit tubes Within the stock and at right migles to ouch other and having portions Within the sight opening. on electric lamp within said chamber and adapted to project the rays of light into the sight opening and upon said tubes, and e cover closing said ehan'iber and comprising a plate secured to the respective of the stock and provided with a slot opening into the chamber, and a second plate closing the slot in the firstnieutioned plate and removable thorefrom.

3. A device of the class described comprising at stock having a sight opening-therein, and a cl'zainber formed Within the stock and opening upon one edge thereof, spirit tubes within the stock, and at right angles to each other and having portions Within the sight opening. on electric lump Within said chamber and adapted to project the rays of light into the sight opening and upon said tubes, and it cover closing Said chamber comprising a plate secured to one edge of the stock and provided with a slot opening into the chamber and having grooved end walls, and a second plate designed to close the slot in the first mentioned plate and haying a lip at one end engageable in the adjacent groove, and a movable tongue at the opposite end adapted to be projected into and withdrawn from the regroove. 7 In testimony whereof I afl'ix my signature in presence of two Witnesses.

OMER FARE. Witnesses:

An'roxnn R. FGISY ALPHONSE lZAvoIE. 

